The pair were last pictured in public together at the black-tie Sydney Children's Hospital Silver Party in 2016.
Ms Singleton told columnist Ros Reines in 2014: 'I had sworn off men when I stumbled across Stuart'.
The pair first went public with their relationship in 2014, stepping out together at restaurant Catalina's 20th birthday party.
"I didn't even know who he was but we just started chatting away.
"I asked him what he did and had no idea that he was an ex-cricketer or that he would be mobbed by fans of all ages wherever he went.
'He's a nice genuine guy, who is very family oriented... He likes reading, watching movies and is very intelligent.'
She also said she was learning about wines from him.
Mr MacGill split with his wife Rachel Friend in 2014.
Contacted for comment about the AVO matter, Ms Singleton said: 'I have nothing to say'.
Mr MacGill was also approached for comment.